senator john mccain telling your "this week" show yesterday, he thinks the time is right, especially given the power of latino voters in the last election. >>> let's get the rest of the morning headlines from david muir, weekend anchor in for josh. >> good morning, everyone. we're going to begin with the search for answers after that horrific nightclub tragedy. 230 were trapped and killed in a fire that engulfed a dance club in brazil. one exit became a death trap in seconds. matt gutman is in brazil with new details on how the fire started and why there was no other way out. good morning. >> reporter: good morning, david. it is impossible to underestimate the impact that has had in brazil. look at the headlines. banner headlines everywhere here today. and largely because those killed were so young, mostly college students and minors. and because this mostly was avoidable. this morning, images of inconsolable grief. investigators say the fire that claimed the lives of more than 230 people who died in this popular nightclub, started with the band had small flares, pointing them toward